Electronic device for measuring light properties

Details Electronic device for measuring light properties Electronic device for measuring light properties

1994-03-23

1997-03-11

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Ultraviolet light responsive means

25037007, 25037006, 25037014, 250591, G01J 124, G01J 142

Patent

active

056104057

ABSTRACT:
An electronic apparatus comprising a material having photoconductivity, an energy bandgap, and trap levels. The material is typified by a thin film of polycrystalline diamond. The material is illuminated with a first electromagnetic emission, (which may include visible light, ultraviolet light, gamma rays, or x-rays) having photon energies smaller than the energy bandgap of the material. Then, the material is illuminated with a second electromagnetic emission having photon energies greater than the energy bandgap of the material to thereby induce a photocurrent. The amount of the first emission can be known by measuring the induced photocurrent.

REFERENCES:
patent: 3375372 (1968-03-01), Miyashita
patent: 3576546 (1968-06-01), Heyman et al.
patent: 5300784 (1994-04-01), Fender et al.

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